COMFORT-AIRE A-VFH30QB-1, Installation & Operation Manual

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Installation & Operation Manual - VFH-B 30/36/42 Series
Inverterflex Series
10
Allowable Length and Height Fall of the Refrigerant Pipe
Table 7
Allowable Value
Fitting Pipe
A-VFH30QB-1
A-VFH36QB-1
A-VFH42PB-1
Total length (actual length) of fitting
pipe
229.6ft 246.1ft L
1
+L
2
+…+L
M
(M ≤ 5)
Length of farthest fitting pipe (ft) 82ft 82ft L
X
（
X=1
，
2
，
3
，
4,5
）
Height difference
between outdoor
unit and indoor unit
Outdoor unit at
upper
49.2ft 49.2ft H1
Outdoor unit at
lower
49.2ft 49.2ft H3
Height difference between
indoor units ( ft. )
24.6ft 24.6ft H2
b
a
e
d
c
L4 L3 L2 L5 L1
Outdoor unit
H
ei
ght
di
ffe
ren
ce
be
tw
ee
n
ind
oo
ru
ni
ta
nd
out
do
or
un
it
H
1
H
ei
ght
di
ffer
enc
e
bet
w
ee
n
in
do
or
un
its
H
2
Indoor unit
Indoor unit
Equivalent length of the farthest fitting pipe L
x
Fig 8
4.2.3 Installation of the pipe insulation
(1)The refrigerant pipe should be insulated in order to prevent condensation and water leakage.
(2)The joints of the indoor unit should be wrapped with insulating material and no gap is allowed on the joint of
the indoor unit, as shown in Fig.9.
Thermal insulating layer is required to be wrapped at this part.
Thermal insulating pipe
No gap
Fig 9
1 1
Inverterflex Series